UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 624
UPD78F1506GF-GAT-AX
Manufacturer Part Number
UPD78F1506GF-GAT-AX
Description
MCU 16BIT 78K0R/LX3 128-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Lx3r
Datasheet
1.UPD78F1500GK-GAK-AX.pdf
(1016 pages)
Specifications of UPD78F1506GF-GAT-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LCD, LVD, POR, PWM, WDT
Number Of I /o
78
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x12b, D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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78K0R/Lx3
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
(2) Master operation in multi-master system
Note Confirm that the bus is released (CLD bit = 1, DAD bit = 1) for a specific period (for example, for a period of one
1
frame). If the SDA0 pin is constantly at low level, decide whether to release the I
high level) in conformance with the specifications of the product that is communicating.
No
Setting STCEN and IICRSV
ACKE = WTIM = SPIE = 1
IICCTL0 ← 0XX111XXB
IICCTL0 ← 1XX111XXB
Checking bus status
IICWL, IICWH ← XXH
Enables reserving
interrupt occurs?
Master operation
communication.
SVA ← XXH
IICRSV = 0?
IICF ← 0XH
Setting port
Setting port
SPD = 1?
SPIE = 1
IICE = 1
INTIICA
START
starts?
A
Yes
Yes
Yes
Yes
(Communication start request)
•
•
Bus status is
being checked.
Waiting to be specified as a slave by other master
Waiting for a communication start request (depends on user program)
Figure 15-29. Master Operation in Multi-Master System (1/3)
Note
Disables reserving
communication.
(No communication start request)
No
No
No
Selects a transfer clock.
Sets a local address.
Sets a start condition.
Setting of the port used alternatively as the pin to be used.
First, set the port to input mode and the output latch to 0 (see 15.3 (8) Port mode register 6 (PM6)).
Releases the bus for a specific period.
Slave operation
Set the port from input mode to output mode and enable the output of the I
(see 15.3 (8) Port mode register 6 (PM6)).
B
STCEN = 1?
Yes
interrupt occurs?
Slave operation
SPIE = 0
INTIICA
Yes
No
Waits for a communication request.
No
CHAPTER 15 SERIAL INTERFACE IICA
interrupt occurs?
SPD = 1?
SPT = 1
INTIICA
Yes
Yes
2
C bus (SCL0 and SDA0 pins =
2
C bus
No
No
Waits for detection
of the stop condition.
Prepares for starting
communication
(generates a stop condition).
Slave operation
624
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